Finding the Fourth Proportional to 297.11, 445.58 and 142.99
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Solution
The fourth proportional to 297.11, 445.58 and 142.99 is: 214.45
Step by Step Solution
- Step 1: Write the proportion equation
297.11 : 445.58 = 142.99 : x - Step 2: Convert to fraction form
297.11/445.58 = 142.99/x - Step 3: Cross multiply
297.11x = 445.58 × 142.99 - Step 4: Simplify right side
297.11x = 63,714.40 - Step 5: Solve for x
x = 63,714.40/297.11 - Step 6: Final answer
x = 214.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.